Illinois Dams
1,630 dams tracked by the National Inventory of Dams
Total Dams
1,630
High Hazard
251
15.4%
Poor / Unsatisfactory
6
Average Age
61 yrs
Hazard Classification
High251 (15.4%)
Significant360 (22.1%)
Low1,008 (61.8%)
Condition Assessment
Satisfactory8 (0.5%)
Fair6 (0.4%)
Poor / Unsatisfactory6 (0.4%)
Not Rated1,610 (98.8%)
Federal
48
State
68
Local
286
Private
1,153
Tallest Dams
- Refuse Disposal Area175 ft
- Shelbyville Dam138 ft
- Duck Creek Station Dams123 ft
- Devil`s Kitchen Dam121 ft
- Macoupin Energy Refuse Disposal Area 6117 ft
High Hazard Dams
Poor Condition Dams
- Whoopie CatPoor
- Arsenal Power Poor
- Dam A-41Poor
- Lake Chautauqua Upper DamPoor
- Lake Chautauqua Lower DamPoor
All Dams in Illinois
Showing 151–175 of 251
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lockport Lock and Controlling Works Will County | 65 | 1933 | High | Not Available |
| Long Lake Dam Fulton County | 20 | 1965 | High | Not Available |
| Lower Elmhurst Dam Cook County | 15 | 1994 | High | Not Available |
| Macoupin Energy Recirculation Pond Dam Macoupin County | 43 | 1970 | High | Not Available |
| Macoupin Energy/Refuse Disposal Area 5 Macoupin County | 95 | 1987 | High | Not Available |
| Macoupin Energy Refuse Disposal Area 6 Macoupin County | 117 | 1991 | High | Not Available |
| Macoupin Energy Smith Reservoir Dam Macoupin County | 58 | 1969 | High | Not Available |
| Marian Lake Dam Adams County | 26 | — | High | Not Available |
| Mauvaise Terre Lake Dam Morgan County | 30 | 1923 | High | Not Available |
| Mcleansboro Lake Dam Hamilton County | 36 | 1937 | High | Not Available |
| M. D. Borah Lake Dam Richland County | 36 | 1953 | High | Not Available |
| Meacham Grove Main Dam DuPage County | 11 | 1998 | High | Not Available |
| Midlothian Creek Dam Cook County | 22 | 1975 | High | Not Available |
| Mill Creek Water Reclamation District Dam Kane County | 9 | 1995 | High | Not Available |
| Miller Lake Dam Jefferson County | 40 | 1947 | High | Not Available |
| Miller Park Lake Dam McLean County | 33 | 1928 | High | Not Available |
| Moraine View Dam McLean County | 42 | 1963 | High | Not Available |
| Nashville City Reservoir Dam Washington County | 26 | 1935 | High | Not Available |
| Norris City Reservoir Dam White County | 20 | 1937 | High | Not Available |
| Norris Slurry Impoundment Fulton County | 50 | 1955 | High | Not Available |
| North Branch Soldier Creek Reservoir Dam Kankakee County | 13 | 1990 | High | Not Available |
| Northeast Recreation Area Dam LaSalle County | 27 | 1988 | High | Not Available |
| Northern White Sands Dam LaSalle County | 28 | — | High | Not Available |
| North Pointe Lake Dam McLean County | 8 | 1984 | High | Not Available |
| Oakland Hills Dam Madison County | 16 | 1940 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.